This place has a great location to explore Bangkok from. The public transport and the ferry (Sathorn Pier) are easily accessible with 5-10 minutes walk. The room is a bit small but functional, and I think you won't spend too much time in a room in Bangkok anyway. If you may have an inquiry than Wimponpak is very responsive and a quick problem solver during day and night.
The price value ratio is good, I think you get what you pay for. The street is a bit smelly but this is true almost everywhere in Bangkok.